Omit the stacktrace for JOniException

[eregon]

• The stacktrace is not very useful and is very expensive, for example for Regexp#to_s on a Regexp like /(?i:a)|(?i:b)/.
• On ruby-bench's railsbench it accounts for about 8% of the request time (when run on TruffleRuby).
• Rails master has been improved to use #source instead, Use Regexp#source instead of Regexp#to_s to detect deep filters rails/rails#58678, but that doesn't affect existing releases.

cc @headius